Sorting Strings

Sorting Strings

<?php 
$arr1 = $arr2 = array("img12.png","img10.png","img2.png","img1.png"); 
echo "Standard string comparison\n"; 
usort($arr1,"strcmp"); 
print_r($arr1); 
echo "\nNatural order string comparison\n"; 
usort($arr2,"strnatcmp"); 
print_r($arr2); 
?> 


/* Output 
Standard string comparison 
Array 
( 
    [0] => img1.png 
    [1] => img10.png 
    [2] => img12.png 
    [3] => img2.png 
) 

Natural order string comparison 
Array 
( 
    [0] => img1.png 
    [1] => img2.png 
    [2] => img10.png 
    [3] => img12.png 
) 
*/